Sketchy on the Details is an Act 2 side quest in Dragon Age II.
Acquisition
Go to Hightown during the day and head towards the Chantry. After you reach the Chantry go to the Chantry Board and accept the request posted on it.
Walkthrough
You must eliminate different groups of assassins all over Kirkwall and then report to Sketch at the Docks during night time to tell him they are all dead. You will only receive quest updates upon the deaths of the first and last groups of assassins. The locations of the assassin groups are listed below:
First: Hightown (Night): Denerim Avengers in Hightown Square (map marker).
- Gallows: Qunari Death Squad, East of Solivitus' shop.
- Darktown: Carta Loyalists in the Abandoned Mining Tunnels (map marker).
- Lowtown (Day): Antivan Assassins in the entrance to the Alienage.
- The Hanged Man (Night): Rivaini Legendary Beards upstairs.
Last: Docks (Night): Turn in to Sketch.
Rewards
- Random loot
- Sketch's Resplit-Shaft
- XP for each group killed(various) and upon completion(750 XP).
Notes
- If Ladies' Lights Out has not yet been completed, the player may also be attacked by a wave of Invisible Sisters in the Hightown Square.
Trivia
- Players of the Dragon Age: Origins DLC, Leliana's Song will remember Sketch as one of Leliana's companions.
- When you meet up with him at the end he says "My reputation precludes me" But 'Precedes' is probably what they meant to say. Or it may be a deliberate play on the common phrase "My reputation precedes me." In this case he would be claiming that the stories about him are exaggerated to the point of falsehood, preventing him from living in peace.
Bugs
The quest seems to stay in the journal even after turning it in to Sketch simply saying "You took care of the foreign assassins" and Sketch will remain in the Docks with a quest marker over his head. However, you do still get the exp for the quest.
Note: 
As of the latest patch, the quest is removed from the journal, however Sketch will still remain at the docks with a quest marker over his head.
As of the latest patch, the quest is removed from the journal, however Sketch will still remain at the docks with a quest marker over his head.Note: If the console is enabled this can be resolved by typing "runscript zz_dae set lgt000pt_baz_sketchy 4 1". It will cause Sketch to walk out of the docks which is what was intended. Unfortunately you will receive additional experience and another staff as if you turned in the quest twice.
If the console is enabled this can be resolved by typing "runscript zz_dae set lgt000pt_baz_sketchy 4 1". It will cause Sketch to walk out of the docks which is what was intended. Unfortunately you will receive additional experience and another staff as if you turned in the quest twice.- If the quest is not completed by Act 3, the assassins will show up as scripted, but Sketch will not appear, making it impossible to complete the quest.
- Assassins in Darktown may not appear, making the quest unable to be finished.
Note: Fixed as of v1.02.
Fixed as of v1.02.- Quest markers won't be visible at all, making assassins or Sketch hard to find.
- Quest markers stay and journal doesn't update with Denerim Avengers in Hightown.